Detection of gas hydrate sediments using prestack seismic AVA inversion

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• 作者：Ru-Wei Zhang ; Hong-Qi Li ; Bao-Jin Zhang ; Han-Dong Huang ; Peng-Fei Wen
• 关键词：Gas hydrate ; BSR ; Prestack inversion ; saturation
• 刊名：Applied Geophysics
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：12
• 期：3
• 页码：453-464
• 全文大小：1,065 KB
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• 作者单位：Ru-Wei Zhang (1) (2)
  Hong-Qi Li (1)
  Bao-Jin Zhang (2)
  Han-Dong Huang (1)
  Peng-Fei Wen (2)
  
  1. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum (Beijing), Beijing, 102249, China
  2. Key Laboratory of Marine Mineral Resources, Ministry of Land and Resources, Guangzhou Marine Geological Survey, Guangzhou, 510075, China
  
• 刊物主题：Geophysics/Geodesy; Geotechnical Engineering & Applied Earth Sciences;
• 出版者：Springer Berlin Heidelberg
• ISSN：1993-0658

文摘

Bottom-simulating reflectors (BSRs) in seismic profile always indicate the bottom of gas hydrate stability zone, but is difficult to determine the distribution and features of gas hydrate sediments (GHS). In this study, based on AVA forward modeling and angle-domain common-image gathers we use prestack AVA parameters consistency inversion in predicting gas hydrate sediments in the Shenhu area at northern slope of South China Sea, and obtain the vertical and lateral features and saturation of GHS. Keywords Gas hydrate BSR Prestack inversion saturation